The Empire Trilogy is, without a doubt, one of the best fantasy trilogies you can ever find to read. I, and others i’ve met who have read it, all heartily agree on this.
Do be aware that it sits in The Riftwar Saga and — for full and complete enjoyment — you may wish to follow the reading guide i have suggested on Raymond E. Feist’s page.
Standalone
Sorcerer’s Legacy – 1982
The Cycle of Fire Trilogy
Stormwarden – 1984
Keeper of the Keys – 1988
Shadowfane – 1988
The Empire Trilogy
Servant of the Empire – 1987
Daughter of the Empire – 1990
Mistress of the Empire – 1992
Standalone
Master of Whitestorm – 1992
To Ride Hell’s Chasm – 2002
Moebius Trip – 2006
Black Bargain – 2017